-- ============================================================================
-- Migration 052: Hydration Schema Alignment
-- ============================================================================
--
-- Purpose: Add columns to canonical tables needed for hydration from
--          dutchie_products and dutchie_product_snapshots.
--
-- This migration ensures store_products and store_product_snapshots can
-- receive all data from the legacy dutchie_* tables.
--
-- SAFETY RULES:
--   - ALL columns use ADD COLUMN IF NOT EXISTS
--   - NO DROP, DELETE, TRUNCATE, or destructive operations
--   - Fully idempotent - safe to run multiple times
--
-- Run with:
--   psql "postgresql://dutchie:dutchie_local_pass@localhost:54320/dutchie_menus" \
--     -f migrations/052_hydration_schema_alignment.sql
--
-- ============================================================================


-- ============================================================================
-- SECTION 1: store_products - Additional columns from dutchie_products
-- ============================================================================

-- Brand ID from Dutchie GraphQL (brandId field)
ALTER TABLE store_products ADD COLUMN IF NOT EXISTS provider_brand_id VARCHAR(100);

-- Legacy dutchie_products.id for cross-reference during migration
ALTER TABLE store_products ADD COLUMN IF NOT EXISTS legacy_dutchie_product_id INTEGER;

-- THC/CBD content as text (from dutchie_products.thc_content/cbd_content)
ALTER TABLE store_products ADD COLUMN IF NOT EXISTS thc_content_text VARCHAR(50);
ALTER TABLE store_products ADD COLUMN IF NOT EXISTS cbd_content_text VARCHAR(50);

-- Full cannabinoid data
ALTER TABLE store_products ADD COLUMN IF NOT EXISTS cannabinoids JSONB;

-- Effects array
ALTER TABLE store_products ADD COLUMN IF NOT EXISTS effects TEXT[];

-- Type (Flower, Edible, etc.) - maps to category in legacy
-- Already have category VARCHAR(100), but type may differ
ALTER TABLE store_products ADD COLUMN IF NOT EXISTS product_type VARCHAR(100);

-- Additional images array
ALTER TABLE store_products ADD COLUMN IF NOT EXISTS additional_images TEXT[];

-- Local image paths (from 032 migration)
ALTER TABLE store_products ADD COLUMN IF NOT EXISTS local_image_url TEXT;
ALTER TABLE store_products ADD COLUMN IF NOT EXISTS local_image_thumb_url TEXT;
ALTER TABLE store_products ADD COLUMN IF NOT EXISTS local_image_medium_url TEXT;
ALTER TABLE store_products ADD COLUMN IF NOT EXISTS original_image_url TEXT;

-- Status from Dutchie (Active/Inactive)
ALTER TABLE store_products ADD COLUMN IF NOT EXISTS platform_status VARCHAR(20);

-- Threshold flags
ALTER TABLE store_products ADD COLUMN IF NOT EXISTS is_below_threshold BOOLEAN DEFAULT FALSE;
ALTER TABLE store_products ADD COLUMN IF NOT EXISTS is_below_kiosk_threshold BOOLEAN DEFAULT FALSE;

-- cName / slug from Dutchie
ALTER TABLE store_products ADD COLUMN IF NOT EXISTS c_name VARCHAR(255);

-- Coming soon flag
ALTER TABLE store_products ADD COLUMN IF NOT EXISTS is_coming_soon BOOLEAN DEFAULT FALSE;

-- Provider column already exists, ensure we have provider_dispensary_id
ALTER TABLE store_products ADD COLUMN IF NOT EXISTS provider_dispensary_id VARCHAR(100);

-- Enterprise product ID (cross-store product linking)
-- Already exists from migration 051

-- Total quantity available (from POSMetaData.children)
ALTER TABLE store_products ADD COLUMN IF NOT EXISTS total_quantity_available INTEGER;
ALTER TABLE store_products ADD COLUMN IF NOT EXISTS total_kiosk_quantity_available INTEGER;

-- Weight
ALTER TABLE store_products ADD COLUMN IF NOT EXISTS weight VARCHAR(50);

-- Options array (size/weight options)
ALTER TABLE store_products ADD COLUMN IF NOT EXISTS options TEXT[];

-- Measurements
ALTER TABLE store_products ADD COLUMN IF NOT EXISTS measurements JSONB;

-- Raw data from last crawl
ALTER TABLE store_products ADD COLUMN IF NOT EXISTS raw_data JSONB;

-- Source timestamps from Dutchie
ALTER TABLE store_products ADD COLUMN IF NOT EXISTS source_created_at TIMESTAMPTZ;
ALTER TABLE store_products ADD COLUMN IF NOT EXISTS source_updated_at TIMESTAMPTZ;


-- ============================================================================
-- SECTION 2: store_product_snapshots - Additional columns for hydration
-- ============================================================================

-- Legacy dutchie_product_snapshot.id for cross-reference
ALTER TABLE store_product_snapshots ADD COLUMN IF NOT EXISTS legacy_snapshot_id INTEGER;

-- Legacy dutchie_product_id reference
ALTER TABLE store_product_snapshots ADD COLUMN IF NOT EXISTS legacy_dutchie_product_id INTEGER;

-- Options JSONB from dutchie_product_snapshots
ALTER TABLE store_product_snapshots ADD COLUMN IF NOT EXISTS options JSONB;

-- Provider dispensary ID
ALTER TABLE store_product_snapshots ADD COLUMN IF NOT EXISTS provider_dispensary_id VARCHAR(100);

-- Inventory details
ALTER TABLE store_product_snapshots ADD COLUMN IF NOT EXISTS total_quantity_available INTEGER;
ALTER TABLE store_product_snapshots ADD COLUMN IF NOT EXISTS total_kiosk_quantity_available INTEGER;

-- Platform status at time of snapshot
ALTER TABLE store_product_snapshots ADD COLUMN IF NOT EXISTS platform_status VARCHAR(20);

-- Threshold flags at time of snapshot
ALTER TABLE store_product_snapshots ADD COLUMN IF NOT EXISTS is_below_threshold BOOLEAN DEFAULT FALSE;
ALTER TABLE store_product_snapshots ADD COLUMN IF NOT EXISTS is_below_kiosk_threshold BOOLEAN DEFAULT FALSE;

-- Special data
ALTER TABLE store_product_snapshots ADD COLUMN IF NOT EXISTS special_data JSONB;
ALTER TABLE store_product_snapshots ADD COLUMN IF NOT EXISTS special_name TEXT;

-- Pricing mode (rec/med)
ALTER TABLE store_product_snapshots ADD COLUMN IF NOT EXISTS pricing_type VARCHAR(10);

-- Crawl mode (mode_a/mode_b)
ALTER TABLE store_product_snapshots ADD COLUMN IF NOT EXISTS crawl_mode VARCHAR(20);


-- ============================================================================
-- SECTION 3: crawl_runs - Additional columns for hydration
-- ============================================================================

-- Legacy job ID references
ALTER TABLE crawl_runs ADD COLUMN IF NOT EXISTS legacy_dispensary_crawl_job_id INTEGER;
ALTER TABLE crawl_runs ADD COLUMN IF NOT EXISTS legacy_job_run_log_id INTEGER;

-- Schedule reference
ALTER TABLE crawl_runs ADD COLUMN IF NOT EXISTS schedule_id INTEGER;

-- Job type
ALTER TABLE crawl_runs ADD COLUMN IF NOT EXISTS job_type VARCHAR(50);

-- Brands found count
ALTER TABLE crawl_runs ADD COLUMN IF NOT EXISTS brands_found INTEGER DEFAULT 0;

-- Retry count
ALTER TABLE crawl_runs ADD COLUMN IF NOT EXISTS retry_count INTEGER DEFAULT 0;


-- ============================================================================
-- SECTION 4: INDEXES for hydration queries
-- ============================================================================

-- Index on legacy IDs for migration lookups
CREATE INDEX IF NOT EXISTS idx_store_products_legacy_id
    ON store_products(legacy_dutchie_product_id)
    WHERE legacy_dutchie_product_id IS NOT NULL;

CREATE INDEX IF NOT EXISTS idx_snapshots_legacy_id
    ON store_product_snapshots(legacy_snapshot_id)
    WHERE legacy_snapshot_id IS NOT NULL;

CREATE INDEX IF NOT EXISTS idx_snapshots_legacy_product_id
    ON store_product_snapshots(legacy_dutchie_product_id)
    WHERE legacy_dutchie_product_id IS NOT NULL;

CREATE INDEX IF NOT EXISTS idx_crawl_runs_legacy_job_id
    ON crawl_runs(legacy_dispensary_crawl_job_id)
    WHERE legacy_dispensary_crawl_job_id IS NOT NULL;

-- Index on provider_product_id for upserts
CREATE INDEX IF NOT EXISTS idx_store_products_provider_id
    ON store_products(provider_product_id);

-- Composite index for canonical key lookup
CREATE INDEX IF NOT EXISTS idx_store_products_canonical_key
    ON store_products(dispensary_id, provider, provider_product_id);


-- ============================================================================
-- SECTION 5: Unique constraint for idempotent hydration
-- ============================================================================

-- Ensure unique snapshots per product per crawl
-- This prevents duplicate snapshots during re-runs
DO $$
BEGIN
    IF NOT EXISTS (
        SELECT 1 FROM pg_constraint
        WHERE conname = 'store_product_snapshots_unique_per_crawl'
    ) THEN
        -- Can't add unique constraint on nullable columns directly,
        -- so we use a partial unique index instead
        CREATE UNIQUE INDEX IF NOT EXISTS idx_snapshots_unique_per_crawl
            ON store_product_snapshots(store_product_id, crawl_run_id)
            WHERE store_product_id IS NOT NULL AND crawl_run_id IS NOT NULL;
    END IF;
EXCEPTION
    WHEN duplicate_object THEN NULL;
    WHEN OTHERS THEN NULL;
END $$;


-- ============================================================================
-- SECTION 6: View for hydration status monitoring
-- ============================================================================

CREATE OR REPLACE VIEW v_hydration_status AS
SELECT
    'dutchie_products' AS source_table,
    (SELECT COUNT(*) FROM dutchie_products) AS source_count,
    (SELECT COUNT(*) FROM store_products WHERE legacy_dutchie_product_id IS NOT NULL) AS hydrated_count,
    ROUND(
        100.0 * (SELECT COUNT(*) FROM store_products WHERE legacy_dutchie_product_id IS NOT NULL) /
        NULLIF((SELECT COUNT(*) FROM dutchie_products), 0),
        2
    ) AS hydration_pct
UNION ALL
SELECT
    'dutchie_product_snapshots' AS source_table,
    (SELECT COUNT(*) FROM dutchie_product_snapshots) AS source_count,
    (SELECT COUNT(*) FROM store_product_snapshots WHERE legacy_snapshot_id IS NOT NULL) AS hydrated_count,
    ROUND(
        100.0 * (SELECT COUNT(*) FROM store_product_snapshots WHERE legacy_snapshot_id IS NOT NULL) /
        NULLIF((SELECT COUNT(*) FROM dutchie_product_snapshots), 0),
        2
    ) AS hydration_pct
UNION ALL
SELECT
    'dispensary_crawl_jobs' AS source_table,
    (SELECT COUNT(*) FROM dispensary_crawl_jobs WHERE status = 'completed') AS source_count,
    (SELECT COUNT(*) FROM crawl_runs WHERE legacy_dispensary_crawl_job_id IS NOT NULL) AS hydrated_count,
    ROUND(
        100.0 * (SELECT COUNT(*) FROM crawl_runs WHERE legacy_dispensary_crawl_job_id IS NOT NULL) /
        NULLIF((SELECT COUNT(*) FROM dispensary_crawl_jobs WHERE status = 'completed'), 0),
        2
    ) AS hydration_pct;


-- ============================================================================
-- DONE
-- ============================================================================

SELECT 'Migration 052 completed successfully. Hydration schema aligned.' AS status;